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实用新型
CN209029907U 强电供电的电磁阀保护装置及系统 有权

强电供电的电磁阀保护装置及系统
摘要：
本实用新型提供一种强电供电的电磁阀保护装置及系统，包括：得电紧停电磁阀、得电紧停动作位置开关、动作复归位置开关、得电动作位置监视继电器及常闭触点；得电紧停电磁阀的紧停侧与得电紧停动作位置开关、常闭触点连接，动作复归位置开关与得电紧停电磁阀的复归侧连接，得电紧停动作位置开关与得电动作位置监视继电器连接；得电紧停电磁阀根据触发器发出的触发信号进行动作；得电紧停动作位置开关和动作复归位置开关监视得电紧停电磁阀的内部阀芯的动作情况；得电动作位置监视继电器在得电紧停电磁阀的内部阀芯运动至正确位置时得电动作，打开常闭触点，切断给紧停侧阀头线圈的供电电源。该方案可以避免较长时间带电导致的电磁阀烧毁。(ESM)同样的发明创造已同日申请发明专利
摘要（英）：

The utility model provides an electromagnetic valve protection device and system powered by strong current. The electromagnetic valve protection device comprises a power-on emergency stop electromagnetic valve, a power-on emergency stop action position switch, an action reset position switch, a power-on action position monitoring relay and a normally-closed contact. The emergency stop side of thepower-on emergency stop electromagnetic valve is connected with a power-on emergency stop action position switch and a normally-closed contact, an action reset position switch is connected with the reset side of the power-on emergency stop electromagnetic valve, and the power-on emergency stop action position switch is connected with a power-on action position monitoring relay; the power-on emergency stop electromagnetic valve acts according to a trigger signal sent by the trigger; the power-on emergency stop action position switch and the action reset position switch monitor the action condition of an internal valve element of the power-on emergency stop electromagnetic valve. The power-on action position monitoring relay is powered on to act when an internal valve element of the power-onemergency stop electromagnetic valve moves to the correct position, a normally-closed contact is opened, and a power supply for an emergency stop side valve head coil is cut off. According to the scheme, burnout of the electromagnetic valve caused by long-time electrification can be avoided.

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